The Serum Institute began mass-producing COVID vaccines even before approval. They've made millions of doses. But so far only about 4% of people in India are fully vaccinated. What went wrong?
African nations had been counting on Serum Institute of India for nearly all their COVID vaccines. Now the company says it won't be sending any more for months. And African officials are scrambling.
NPR tours the factory of the world's largest vaccine maker: Serum Institute of India. It's manufacturing nearly 100 million doses a month of the Oxford-AstraZeneca formula and exporting them globally.